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US 12,319,036 B2Granted
Composite laminate and method for producing same
AssigneeOtsuka Chemical Co., Ltd.
InventorsHiroshi Yagi, Takashi Kitajima, Kousuke Inada
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AssigneeOtsuka Chemical Co., Ltd.
InventorsHiroshi Yagi, Takashi Kitajima, Kousuke Inada
Estimating the term…
Provided is a composite laminate having excellent releasability from a mold during a production process, excellent surface appearance (surface smoothness) and mechano-physical properties, and excellent workability and coating adhesion. A composite laminate 1 includes an A layer 2 and a B layer 3, wherein the A layer 2 is provided directly or indirectly on one or both sides of the B layer 3, the A layer 2 contains reinforcing fibers (a1) with an average fiber length of 1 μm to 300 μm, spherical particles (a11) with a volume mean particle diameter of 0.01 μm to 100 μm, and a thermoplastic resin (a2), and the B layer 3 contains reinforcing fibers (b1) with an average fiber length of 1 mm or more and a thermoplastic resin (b2).
A composite laminate comprising an A layer and a B layer, the A layer being provided directly or indirectly on one or both sides of the B layer, the A layer containing reinforcing fibers (a1) with an average fiber length of 1 μm to 300 μm, spherical particles (a11) with a volume mean particle diameter of 0.01 μm to 100 μm, and a thermoplastic resin (a2), the B layer containing reinforcing fibers (b1) with an average fiber length of 1 mm or more and a thermoplastic resin (b2), wherein the reinforcing fibers (a1) are at least one of potassium titanate and wollastonite, and the spherical particles (a11) are at least one material selected from the group consisting of silica and alumina.
Dependencies are inferred from the claim text.